25534531 has 8 divisors (see below), whose sum is σ = 29067264. Its totient is φ = 22203720.

The previous prime is 25534519. The next prime is 25534541. The reversal of 25534531 is 13543552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25534531 - 2¹³ = 25526339 is a prime.

It is a super-2 number, since 2×25534531² = 1304024546779922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25534531.

It is not an unprimeable number, because it can be changed into a prime (25534501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50211 + ... + 50716.

It is an arithmetic number, because the mean of its divisors is an integer number (3633408).

Almost surely, 2^25534531 is an apocalyptic number.

25534531 is a deficient number, since it is larger than the sum of its proper divisors (3532733).

25534531 is a wasteful number, since it uses less digits than its factorization.

25534531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100961.

The product of its digits is 9000, while the sum is 28.

The square root of 25534531 is about 5053.1703909526. The cubic root of 25534531 is about 294.4710659790.

The spelling of 25534531 in words is "twenty-five million, five hundred thirty-four thousand, five hundred thirty-one".